113231133 has 6 divisors (see below), whose sum is σ = 163556094. Its totient is φ = 75487416.

The previous prime is 113231119. The next prime is 113231141. The reversal of 113231133 is 331132311.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 80946009 + 32285124 = 8997^2 + 5682^2 .

It is not a de Polignac number, because 113231133 - 2¹⁷ = 113100061 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113231143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6290610 + ... + 6290627.

It is an arithmetic number, because the mean of its divisors is an integer number (27259349).

Almost surely, 2^113231133 is an apocalyptic number.

It is an amenable number.

113231133 is a deficient number, since it is larger than the sum of its proper divisors (50324961).

113231133 is a wasteful number, since it uses less digits than its factorization.

113231133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12581243 (or 12581240 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 113231133 is about 10641.0118409858. The cubic root of 113231133 is about 483.7882144360.

Adding to 113231133 its reverse (331132311), we get a palindrome (444363444).

The spelling of 113231133 in words is "one hundred thirteen million, two hundred thirty-one thousand, one hundred thirty-three".